Has anyone disassembled the head water inlet seacock? The one on Mondial was stuck in the open position and I finally got it loosened up while she's "on the hard". I'd like to know how it works ... it it a stainless ball type?. I removed the water hose and the small plug on the outboard side. I couldn't, however, get to the one on the inboard side. Once I got some access to it, I sprayed in a thin penetrating oil and got it working. Anyone with any experience?

Joe